Damper



(No Model.)

C. A. DANIELS.

DAMPER.

No. 545,947. `Peizenjzed Sept. 10,1895.

` Charles mez.

Nirn rares CHARLES A. DANIELS, OF VVATERVILLE, NEW YORK.

DAMPER.

SPECIFICATION forming part of Letters Patent No. 545,947, dated September 10, 1895.

Application tiled November 30, 1894. Serial No. 530,408. (No muriel.)

To all whom it may concern:

Be it known that I, CHARLES A. DANIELs, a citizen of the United States, residing at Waterville, in the county of Oneida and State of New York, have invented a new and useful Damper, of which the following is a speciication.

The object of this invention is to provide a damper by which any oxygen that may iind its way down the stovepipe may be allowed to pass said damper and commingle with the gaseous compounds in the chimney, so as to produce a combustible mixture, and so that the same may be ignited and consumed. This operation is calculated to result in a complete consumption of all the gaseous matter, which will result in a twofold benefit-namely, the gas is prevented from escaping and pervading the surrounding atmosphere and, also, the fire in the stove or furnace is increased and more heat accordingly obtained. This end I prefer to attain by means of a damper having a portion lying plane with its axis and having at each side thereof wings or vanes, which curve laterally from the said portion and thence inwardly and finally back to sub stantially the plane of the portion first referred to. These wings or vanes are narrower than the central portion of the damper, so as to form passages or spaces at their sides, through Which the oxygen may at times pass in the act of combining with the gas. The central portion is provided with a transversely elongated perforation located centrally therein and serving to furnish means for the escape of the products of combustion, or, in other words, to furnish means for facilitating the general draft in the chimney.

In the drawings, Figure l represents a perspective view of a damper constructed after the manner of my invention. Fig. 2 is a cross-section. Fig. 3 is a longitudinal section. Fig. 4 is a plan view of my improved damper, the relation of the chimney being shown by dotted lines.

The referencenumeral l indicates the aforesaid central portion, which is of a width equal to approximately one-third of the diameter of the chimney and which has formed therein the slot 2, saidslot being centrally located in the central portion and having its ends terminating some distance inward from the ends of the central portion, so that the length of the slot will be about one-half of the aggregate length of the central portion, while the width of the slot is equal to the Width of the same.

Formed integral with or rigidly secured to the ends of the central portion l are the journals 3, which have bearings in the chimney or stovepipe and whereby the damper is mounted in place. Fixed to one of the journals 3 is the handle 4, by which the damper may be operated and which projects through the stovepipe or chimney, so as to facilitate access to the same.

5 indicates 'the Wings or vanes referred to hereinbefore, and these are preferably formed integral with the sides of the central portion l, though they may be made separate and rigidly secured in place, if such is desired. These wings or vanes are two in number and duplicates of each other, each being curved laterally from the side to which it is attached and outwardly, thence inwardly across the central portion and with its free end projected beyond the same and back to substantially the plane of the central portion. The free ends of the wings or vanes are rounded, so as to conform to the circular shape of the chimney or stovepipe. At the inner ends of the Wings or vanes, or the points Where they are joined to the central portion 1, the graduallyinclined portions 6 are formed, and these portions operate to reduce the width of the wings or vanes, as explained hereinbefore, so that they Will be narrower than the length of the central portion. This construction has a peculiar and particular function, for by its means openings or passages are formed at the sides of the damper, through which oxygen may at times pass on its way down the chimney. Thus, by reference to Fig. 4 and the dotted lines thereof, it will be seen that when the damper is arranged with its central portion horizontal the deficiency in the width of the wings or vanes will leave openings through which the air may pass, as indicated `loy the arrows in said figure.

In the use of my invention the damper is arranged in the chimney or stovepipe, and when in operative position the central portion 1 is arranged in a horizontal plane. This will close the opening or slot 2 thereof against the direct upward passage of the smoke and gas, owing to the location of the lower wing or vane; but this vane itself guides the said smoke and gas slightly laterally, so that it Will pass into engagement with the lower side of the upper vane, whereupon the smoke and gas are guided downwardly into and through the slot 2 and finally around the upper side of the lower vane and out of the chimney. A circular motion is thus imparted to the products of combustion, the effect of which is to materially retard the upward progress thereoi", thereby effecting a more thorough radiation of the heat and a saving of fuel.

Any oxygen which may iindits way below the damper and into the lower part of the stovepipe is combined with the gas, as before explained, which forms a combustible compound. This compound is instantly ignited by the flames in the stovepipe or chimney, which causes a combustion of the gas with the result hereinbetore explained.

Various changes in the form, proportion, and the minor details of my invention may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having described the invention, I claim- A damper comprising a horizontal central portion or web extending for a distance equal to the diameter of the Hue in which it is arranged, and having a Vertical openingr centrally located therein, two reversely disposed substantially semi-circular wings or vanes rigidly secured one to each side of the central portion or web and extending in opposite directions, the said Wings or vanes being narrower than the length of the central portion or web, thereby forming open spaces at the opposite sides ot' the damper, and the journals extending from the opposite ends of said central portion or web and arranged in parallel relation to the wings or vanes, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence ot' two Witnesses.

CHARLES A. DANIELS. Witnesses:

WALLACE Busen, W. J. BUTTER. 

